284 MR. A. J. JUKES-BROWNE ON | May 1902, 
III. Description oF THE Borine. 
The site of the boring is in the valley of the stream which enters 
the sea at Lyme, at a spot about a mile north-west of Lyme and 
about half a mile east of Uplyme, close to the boundary-line 
between the counties of Devon and Dorset. he level of the 
surface 1s about 140 feet above Ordnance-datum. The work of 
the boring was carried out by Messrs. Vivian’s Boring & Ex- 
ploration Company. ‘The diameter of the upper part of the boring 
down to 200 feet was 6 inches, then to 550 feet it was 53 inches ; 
it was thereafter narrowed to 41 inches, and again at “700 feet 
it was reduced to 4 inches, and carried to 1300 feet without 
change. 
The following is a detailed account of the strata passed through, 
abbreviated from the particulars with which I have been furnished 
by Messrs. Vivian, supplemented by some supplied by Mr. G. Hay- 
craft, who superintended the boring on the spot. I have added 
notes of such samples as have been seen, either by me or by Mr. H. 
b. Woodward. 
Thickness. Depth. 
Feet inches. Feet inches. 
Rou, oravel, ANC MIMS cc0 csec-meceeh tana es eeseeeecee 10 8 10 8 
al e-Srby MIMESLONOS , . van ho Mces ofewas saahcvees Mette 10 0 20 8 
Soft blue shale and a bed of limestone i foot 
thick: sample of grey earthy limestone (at 22 
fGOH) eee she anccn a Meh) oot an ea a he mae seen 3 0 23 8 
‘White Lias’ limestones, with partings of shale : 
sample from 30 feet a compact grey limestone. 14 6 38 2 
Blue shale, with two thin layers of limestone 3 3 +1 ) 
White Dian? limmeationes. «05. Scaseiidacese altar eats acs © Le 49 3 
‘White Lias’ limestone, with shaly layers: sample 
at 50 feet a grey earthy limestone, with some 
IRS -BCAIOS. =< .c:04 + pawns aeactenaaa ae webeeae ae eee 27 0 76 3 
‘White Lias’ limestone with shaly layers: sample 
from 80 feet a hard whitish limestone, breaking 
along faces which are full of small erystals of 
iron-pyrites ; sample at 90 feet a pale-grey fissile 
limestone; sample at 95 feet a hard compact 
Bite AMARONE .1,0- tonsa eetench user sentences 18 10 95 1 
Green mar]: sample from 96 feet pale-grey, shaly, 
calcareous marl ; sample from 100 feet a hard, 
compact, smooth grey marl, very calcareous ... 6 2 101 3 
Dark-blue ‘shale: sample marked 101 a black 
shaly clay, with Avicula contorta and Proto- 
RIUM PRMLOOUMNE, oo os, nas ccreiedcinanielsban saench eave 3 0 104 3 
Grey limestone: sample from 1044 feet a pale-grey 
limestone, with casts of univalve and bivalve 
shells and much eesna EP reo onts ) o 104 10 
Dark-blue shale with fossils: sample from 114 feet 
a black shaly clay with Avicula contorta ......... 9 6 114 4 
Omer Pmest OMe: iiieis.%. 5s siee end epeeeee eae eease 0 6 114 10 
Dark-blue shale: sample from 120 feet a dark 
shale with Avicula contorta; sample from 127 
feet a black shaly clay without fossils ............ 18 210 133 8 
Grey. limestone and Shale <.....<..cheeges: «conn soigseae I 6 135 2 
Dark-biue'shale.and. save) « ..i.5.aecinacceen och oomecnean 10 4 145 6 
* 
